I'm looking for a way to extract information from a router, be it from the router directly, through command, or through the routers webpage. I need to extract the amount of connected devices in real time. This has to be sent somewhere, where it gets processed and can be fed into an arduino.
The project is a kind of installation where light reacts to the amount of connected devices to the network. So more devices connected make the light do something and less make it do something else.
Is this even possible?
Thanks in advance!
Usually this information could be obtained from router's administration web interface.
For example, I found screenshot of Cisco router web interface:
Look at the bottom of the image: where are a "Current clients" field with number of clients.
So, this page could be loaded programmatically and parsed for the needed value.
As you didn't specified your router model, or your programming language or any other details, I can't give your more specific solution.
My python isn't that good though. Is there anyway you can point me in the right direction as where to look for this. And the information is in another submenu so is this still possible?this is what my router interface looks like.
Related
I was thinking about a project the other day and an idea stumbled across my mind:
How would you set up a server, for instance at a restaurant, and have an app of the restaurant chain which finds and directly connects to the locally running server without being in the same network. This should work at higher ranges, so simple Bluetooth is not fitting here.
I've done some research, but I'm not very... good with protocols, and nothing I've found seems to really fit that goal. So I'm wondering what the best way to code this connection would be. Any ideas would be helpful :)
Here are the requirements:
A standard phone should be able to perform the operation.
It should have a fairly high range, think a big store or restaurant.
Server and device do not have to be in the same network.
The connection get's established by the phone on app start, to a server that can do whatever it needs to get this done.
I am implementing automated HL7v2.7 reporting of observations on a point of care device. The way this works is by sending an "ORU^R30 Unsolicited Point-Of-Care Observation Message without Existing Order - Place an Order" message to what I'm assuming will be a laboratory information system or an associated channel in an integration engine. I'm currently going to have the device ask for IP/port numbers to the LIS and MPI/their associated connections on first set-up - our device is going to communicate over TCP/LLP.
Is this the smart way to do all this? I've never worked with HL7 or any kind of HIS before.
I appreciate any possible insight. This isn't the stuff you can learn about in the standard, and I don't think I can just email Epic and ask them how they design EHR/HIS systems.
Thanks!
Message Content: ORU^R30 is not a commonly used message type, but the structure is close enough to R01 that most systems will be able to receive it. Focus on making sure you collect as much patient demographics and the visit number, or better yet scan both from the patient's wristband barcode. You must have patient and visit to file the observations.
Transmission: It's safest to just do MLLP over TCP, it will speed up your installs because that's what everybody else does. The alternative is having the health system write something custom to receive the data, usually via the interface engine.
Network: It sounds like you're thinking of putting the connection info on the device. This probably is a bad idea, I would build some kind of aggregator service that actually sends data to the EHR, that way you don't have to deal with multiple devices trying to get through firewalls, etc.
I am trying to connect ICP CON i-7565 (USB<->CAN interface) to a custom made device (supporting CAN2.0B, proved to work with PCL-841 card) Although I think I have configured BAUD and acceptance code/mask correctly I can see CAN no messages coming from the device (ICP provides a tool that should allow me to send and receive CAN messages).
I am new to CAN bus so I appreciate any help regarding how to identify the problem.
I-7565 might be wrong interface for me, I might have misconfigured it, or it is simply broken. Or I am just doing something wrong out of my ignorance. I don't think anyone can help me with my specific problem, so I am rather asking for general information on how are problems with CAN bus identified and analyzed. In TCP/IP for example, you would call ping, you'd recheck your ip and gateway settings etc. What do you do for CAN communication?
Additional info:
OS: Win7 64bit
connector: DB-9 with standard wiring (2,3,7)
Finally I tried to work with different USB<->CAN interface from different manufacturer and it worked like a charm. My old interface was either broken or incompatible for reasons unknown. While working on this problem I learned couple of things about CAN bus and so now I share what I think was the right answer to my original question: How to troubleshoot CAN bus communication?
read manual to your USB-CAN interface
install driver of your interface device and make sure it is working (check device manager, depending on the type of your device you will see new COM port added or new USB controller )
your device should be shipped with it's own test/analysis software (they might call it utility or similar), run it and check if it can connect to your device
CAN communication uses three wires that are referred to as High, Low and Ground and is usually connected with DB-9 connectors where High is linked to pin n. 7, Low to pin n. 2 and Ground to pin n. 3 or 5 - make sure this is connected correctly on both your USB interface and CAN device you want to communicate with
set properties of your connection, these are most of all: CAN type (2.0A or 2.0B) BAUD rate, Acceptance Code and Acceptance Mask
if you've done all of this and still you can see no CAN messages arriving in your utility program, check with a different USB-CAN interface or find some other way to test if your device is actually emitting CAN messages and your USB interface is in fact able to receive them. (this was actually my case)
I want to be able to show (by device) open/blocked status for a given protocol between two devices/ports on a network. In other words, I need to output a list of network devices (firewalls & switches) between Server A and Server B and indicate whether the request should (according to each device's rules) be allowed through or blocked.
I'm starting with the Cisco networking devices, which are centrally managed by Cisco's Security Manager (CSM) application (version 4.2). I'm new to network management automation programming and want to make sure I'm not overlooking an obvious best way to handle this.
So far it's looking like I'll need to periodically export and ETL device rules out of CSM (they have a perl script that I can call to do this I believe) and into a separate database, then write some custom SQL code to determine which devices on a route between two hosts/ports will allow or block traffic of the given protocol?
Am I on the right track, or is there a better way to go about this?
If I understood your question, I think you can run a TCL script inside the Cisco equipments do collect the necessary information and transfer it to a central server, form there import it to a database and then correlate that information.
Hope that helps you in your work.
What would be the best way of sending a signal from an iPad to an Arduino?
I am trying to use XBee, with iPad and Arduino to send a wireless signal.
I want to make a big red virtual button on an iPad that, when pressed, turns on an LED on the Arduino.
I am a total newbie when it comes to iOS, but OK with Arduino and XBee.
So I'm not sure if I understood correctly, but in my meaning there is only one simple way to solve the problem:
Connect an XBee to a Computer and another to the Arduino. On the computer you launch a webserver, which will be accesible from the iPad over Safari. This server handles the clickes and writes to the XBee Com Port, for communication.
Here are some examples, people already made:
http://www.projectallusion.com/1/post/2009/11/iphone-controlled-solar-powered-arduino-tank.html
http://www.sparkfun.com/tutorials/152 (not with xbee, but you can implement that by yourself)
I know it's been a while but I just came across to this question and yesterday I was doing the exact same thing so I'll share the method I used and the source of it.
In order to set a LED on or off in an Arduino board from the iPad you really don't need anything more than a browser. This is of course if you have a way to connect that Arduino to the local network.
Today you have at least two options. The WiFi and the Ethernet shields. Once you have your Arduino board inside the network you can send the instructions (HIGH or LOW) to the board form the browser.
These are my two boards connected waiting to be plugged to the local network:
Of course, you'll have to code the board to process those instructions. There are many examples on how to configure network settings and state instructions:
If you have a bit of time and want to do something more elaborated you could create a simple app to graphically control the state of those LED(s).
Inside you'll basically do the same thing, create the URL command and send it to the Arduino IP but it'd look much nicer. If you integrate later more controls the sky in the limit.
My experiment is a combination of what I learned from this nice tutorial and some tips I've read here and there.
I hope it becomes also useful to someone else.
Cheers,
Since you need to use a network connection from the iPad, a possibly simpler way to do this would be to use a WiFi module on the Arduino to poll a web script, and have the iPad write a state (button press) to that web script.
There's a handy WiFi module called the RN-XV that's designed like an XBee. I wrote up two tutorials on it:
http://log.liminastudio.com/programming/getting-started-with-the-rn-xv-wifi-module-node-js
http://log.liminastudio.com/itp/physical-computing/using-the-rn-xv-wifi-module-as-a-remote-switch